Electric bell hoist



April 1 4, 1931. G. Fox

- ELECTRIC BELL HOIS'I' Filed Nov. 28, 1928 5 Sheets-Sheet l April 14, 1931. ox.

' ELECTRIC BELL HOIST Filed NOV. 28, 1928 5 Sheets-Sheet 2 Patented Apr. 14, 1931 UNITED- STATES GORDON FOX, OF CHICAGO, ILLINOISQASSIGNOR T O FREYN ENGINEERING COMPANY; OF

P TENT oFFIcE CHICAGO, ILLINOIS, A CORPORATION OF'MAINE, I a

ELECTRIC BELL HOIS'J.

The present invention relates to electric bell hoists. .t a

More particularly the present invention relates to systems for manipulating the bells I of ablast furnace charging system. Blast furnaces are commonly provided with one ormore charging bells at their upper eX- tremities, which bells, betweenvcharglrtglpperations; are held in closed positions. said bells are in said closed positions, material may be deposited thereon. The present-invention contemplates electric control means applicable to charging bells such as referred to. i

An object of the present invention istto provide operating means for a bell hoist which will cause the effectual sealing of the bell in closed position between dumping operations and whichwill cause said bell to open a'ndclose in a safe manner.

A further object is to provide a bell hoist utilizing relatively simple instrumentalities, which bell hoist Will-effectually f hold the bell inclosed position between dumping operations and which will prevent the bell from attaining dangerous speeds while in' motion. a i

-A furtherobject is to provide an improved bell hoist well adapted to meet the needs'of commercial operation.

Further objects will appear scription proceeds. v Y

" Referring to the'drawi'ngsas I the de- Figure 1 is a more orless schematic View illustrating a layout embodying the princi-' ples of the present invention;

Figure 2 is a plan view including motive means forming part of the layout illustrated inFigurel;

Figure 3 shows, on an enlargedscale, part of the structure shown in Figure 2;

' Figure 4 is a view in sideelevation, parts being broken away of the structure shown in Figure 3;

Figure 5 shows a detail of construction Figure 6 is an end view of the structure shown in Figure *3, part being broken away to show the connection between the Winding drum and its associated gear; i I F gure 7 is a SCllGIIlZLfilO View illustratlng the arrangement of certain limit switches employed in the illustrated embodiment of the present invention; and

Figure 8 is a diagrammatic View of an electric circuit forming part of the present invention.

Referring first to Figure 1,the reference character A' indicatesonebell and the character B indicates a second and larger bell,

which cooperate with one another in the loading ofthe blast furnace The two bells A and B may be arranged co-a'i zially in a manner which is common practice, the

bell A being controlled by a cable D, while the larger bellB is controlled by a cable E levers F and G being connected to said cables D and E, respectively, andbeing also con-' nected to thebells A and B, respectively.

The cable. D is connected to the winding drum of an electric hoisting'mechanism, indicated as awhole by the reference characterH, and the cable E is connected to the winding drumof a hoisting mechanism indicated as a whole by thereference chara'c-, ter J. The hoisting'mechanismsjI-I and J may be similar in their p'rinciplesof 'operag' tion, and a description of one ofsaid hoist-Q ing mechanisms will suflice for both.

Referring now more particularly to Fig. ures 3, 4 and 5, hoisting mechanism is i'llus-" a so trated which may be used forelther hoisting mechanism Hor hoisting mechanism J. The:

hoisting mechanism illustrated in these figures includes the cabledrum 1,'which drum is keyed to the shaft 2 and has secured there to the gear 3. Said shaft 2 is rotatably car ried by bearings 44"formingpart of structural supports 5,5 spaced apart a sufiicient distance to swingingly support certain oper-- ating mechanism, which for purposes of convenience in this specification will be termed a tailpiece, and which will be indicated as a whole by the numeral 6. The shaft 2 is provided intermediate of the bearings 4-4 with; journal portions 7-7 for carrying bearings 8-8 for swingingly supporting the tailpiece 6. Said bearings 88 are secured tora-rms 99, which arms may be provided adjacent to their outer swinging extremities with the counterweight 10. At their outer extremities, the arms are provided with the cross connector 11, provided with spring bumpers 1212 adapted to yieldably contact with rigid abutm'ents 13=13 ,(see Figure 1). At a region adjacent to the counterweight 10, the arms 99 support an electric motor 14', which motor is geared to the gear 3 through a train of gears as follows: The rotor of said motor 14 is provided with the pinion 15, which meshes with the, gear 16. Said gear 16 is secured to a shaft 17 having bearings in the two arms 99. Secured to the shaft 17 is the pinion 1'8 meshing with the gear 19. The gear 19 is secured to the shaft '20, which isrotatably carried in bearings supported by the arms 99. The shaft 20 has secured thereto the pinion 21, which meshes with the gear 22., Said gear 22 is secured to the shaft 23 supported in bearings carried by the arms 99. shaft 23 is the pinion 24 meshing with the gear 3. It will be understood without de tailedeiiplanation that when the motor 14 operates with motoring functions itwill,

through the train of gears immediately above described, communicate a relatively slow turning movement to the gear 3. andponseque'ntly to'the winding driim 1. It will also be i'i'n'clerstood that when the winding drum 1 v is pos'itivelyrotated by the cable D or E a s.

sociated with, it, motion will be communicated to the rotor of said motor 14.

Secured to the cross member 11 is a chain 25, said chain being connected to said cross member 11 by 'm'eans of the tenslon spring 26. The. othereXtremity-of said chain 25 may be secured to a relatively fixed abutment (not shown.) .{Said chain 25 will have the function of limiting the swinging movement of the tailpiece .6 in a counterclockwise direction as the parts are viewed in Figure 4.

Securedto' the rotor of motor 14 is a brake mechanism indicated as a whole by J the humeral27. The brake mechanism need not be described in detail, inasmuch as mechanism suitable for the purpose is well known to those skilled in the art and may be readily purchased in the open market. It may be stated briefly that said brake mechanism should be biased to braking relationship with the rotor of the motor l l and. that said brake may be released by the application of electric power thereto.

7 By ref rence to Figure 4 it will be noted Secured to said hand limit as shown in Fi ure 7 'successively operates limit switches 33, 34 and 35.

'On the return. trip, that isfrqm its left hand limit to itsright-hand limit as shown in Figure 7, said nut successively operates limit switches 36 and 37. Said switch 33 is normally closed, limit switch 34 is nornially closed, limit switch 35-is normally open, limit switch 36 is normally closed, and limit s'witchc37 is normally closed. A

Before proceeding with adescription of the electricv circuits shown in Figure'8, .a brief outline of a cycle of operation of the structure describedup to this point will be given. Referring for purposes of this description to the large bell B,'1et it be 'assumed that said bell B is in openposition, the burden which had been loaded upon said bell having been discharged into the blast furnace G. The next step is to 'closesaid" bell B. In order to accomplish the closing of said bell, the brake mechanism 27 will be released andcurrent will be applied to the motor 14 to e'nerg'gi'ze same to'commu'nicate a movement of rotation to the pinion 15 of the hoisting mechanism J. Inasmuch as. said. pinion 15 is geared to. the winding drum 1, said winding drum" will be caused connecting the, motor 14; to the drum 1, will be rais'echrotating on the shaft 2. After said tailpiece 6'has been tilted a" predeter-' mined amount, the sprocket chain 29 will have communicated sufficient turning movement to the screwshaft 31 to cause the in terruption of power supply to the motor 14 and to the brake mechanism 27 The motor 1 f will be stopped and the brake mechanism 27 will be set, holding the tailpiecej6 in its elevated position. Thus the weight of the motor 14-,7the counterweight 10, the framework of the tailpiece 6 and the gears co n' necting the motorv 14% to the drum 1 will be applied to keep the bell B against its seat.

When it is desired to open the bell B, a

push button, ,orsimilarTmechanisni, is op- 5 erated to apply .electric'power to the brake mechanism 27, releasing said brake fromthe shaft of therotor. of the motor '14. jPower is also applied to the motor 14, whereby the tailpiece 6 will be retarded in its descent;

from its elevated position. Expressed in otherlanguage, power-will be applied to the;

motor ,14 at; the time that the braking mech;

revolve while the bellB is descending into the furnace. caused bythe descent of the bell; Boommunicates a turning movement to the drum,

1 and gear.3,whichfturnin movement is communicated to the rotor of the motor 14.

Electric power is still applied to said motor 14,.- whereby the dynamic braking effect is still maintained. Incident tothe-rotation ofthe'drum 1 and gear 3 is rotationo-f the; shaft 17, which, through the sprocket chain.

29, continues to rotate the screw shaft .31. Then the bell B has reached a point of sufficient opening, limit switch 34 is caused to open, interrupting the powersupplied tothe motor 14 and brake mechanism 27,

whereby the motor is open-circuited and'the brake mechanism 27 is set. "After a prede-. termined. delay,.the, motor 14 is' again put; in motion through the instrumentality of a time delay relay or equivalent mechanism, the-bell B is, causedto close, and the tailpiece 6 is elevated, thereby-completing the cycle. As indicated above, the. bell A may be controlled by similar mechanisma The electric circuits for accomplishing the cycle above recited will now be describedr The'numerals 38 38 indicate the, two sides.

of an; electric circuit. Connected acrossthe the mains 38-38 is a circuit including;

the switch contacts 39- 39,. normally 'open contactor 40, armature 41 of the motor 14, ;se ries field winding42 of said motor 14,

operating-coil 43 of the brake mechanism 27, normallyopen contactor 44, normallyopen contactor 45 and normally open contactor 46. Bridged across'the'normally open coni; tactor 44 is the, resistence 47, and'hridged across the normally open contactor 45. isthe resistance 48. Bridged across the normally open contactor 40 and armature 41 is a circuit including the normally open contactor 49 and the resistances 50 and 51. Bridged across the-resistance 51 is the normallyopen contactor 52. Bridged across the circuit of the armature 41 and the series field wind-.

ing 42 is a circuitincluding the resistance 5 53 and the normally closed contactor 54.

The pull upon the cable E.

Bridged across'the circuit of the brake coil 43, normally open contactor 44 and normally open contactor 45 is a circuit including the normally closed contactor 54 and thenor-v mally open contactor Also connected across the mains 38 -38 is a circuit including the start button- 56,-the opera-ting coil 57 of contactor 49,;th'e nore -mally closed contactor. 58 and-the normally closed limit switch 34. Contactor 58 is an auxiliary contact on contactor 40; Contac tor 58;.is-closed when contactor 40is open; and is open when contactor 40' is closed. Bridged across the start button 56 is the normally open contactor 59.- Said contactor 59 is an auxiliary contactor connected to op- I erate with contactor 46. Said contactor 59 is open when contactor 46 is open and is closed when contactor46is closed." Bridged across the; operatingcoil 57 of contactor 49; is the operating coil 60 15017 controlling con-' tactor 55. Bridged across the circuit ofstart button 56 and operating coil 57 is a circuit including coil 61 for; controlling contactor 46 and the normally, open contactorv 62.v Said contactor 62 is an auxiliary contactor on contactor 49 and is open when contactor 49 is open and closed when contactor 49 is:

closed.; Bridged across the coil 61 of contactor 46 is the operating coil 63 for controlling contactor 54. Said coil 63 maybe connectedacrossthe'mains 3838 notronly through the normallyv open contactor 62,. normally closedcontactor 58 and normally closed limit switch 54, but also through'the normally open contactor 64, normally closed contactor 65 and normally closed limit switch 37,:Whichnormally open contactor 64 1s an auxiliary contactor connected to. move with contactor 40, being open when. contactor 40 isopen and closed when contactor. '40 is closed. I Contactor 65 is an auxiliary contactor connected to operate .with con-' tactor 49, being closed when contactor 49 is open and open when contactor 49 is closed. Bridged across the-circuitof operating coil 57 ,normallyclosed contactor '58v andilimit switch 34 is the operating coil 66 for contactor 52, the normally open contactor 67,.

the normally open contactor 68 and the normally closedlimit switch 33. Said normally open contac'tor67 is an auxiliary contactor. connected to move ,with contactor 49, being openwhen contactor 49 is open and closed when contactor 49 is-closed. Contactor 68 is an auzriliarycontactor connected to move with contactor 55, being openwhen COIlllfiCfl tor 55 is open and closed whencontactor 55;

is closed. Bridged across the circuit of-coil 66 and normally open contactor v67 is the.

operating coil 69 for controlling the normally open contactor 45. Also bridged across said coil66 and normally open contactor 67 1 is a circuit including the operating coil 76 for Qntactor 44 and the-normally open contactcr 75 of saiditime delay relay 74;] Clowith contractor 55.

tactor 71. Said 'contactor 71 is an auxiliary contactorconnected to move with contactor 45, being openwhen contactor 45 is open and closed when c'ontactor' 45 is closed.

7 It will be noted that the three circuits immediately above mentioned, to wit-'-the circuits of coil 66 with contactor 67,coil 69 and coil 70 with contactor 71 are parallel with one another. Circuit across the mains 3838 through the start button 56 and said three parallel circuits is adapted to be completed through the normally closed contactor 72 and limit switch 36. Said contactor 72 is an auxiliary contactor connected to move Said contractor 72is closed when contactor 55 is open and'is open when contac'tor 55 is closed.

Also connected across the mains 38- 38 is a circuit including the operating coil 73 of a time delay relay, indicated by the 1111- meral 74, (to be'referred to presently), and the normally open limit switch 3-5.

Also connected acrossth-e mains 38-38 is j a circuit including the normally open con motor 75 of the time delay relay 74,- operat ing coil 76 of contactor 40, normally closed conta'ctor 65 and normally closed limit switch 37. Bridged across the contactor 75 cycle of the mechanical elements a start- .'is made at the time when the large bell B is in open position,'the burden having been discharged into the blast furnace; lnder these conditions the nut 32 "(Figure 7) will be at the left-hand limit of its travel as the parts are viewed in Figure 7, under which conditions limit switch 34 will be open and limit switch 35 will be closed. Ina-s much as limit switch 35 is closed, the operating coil '73 of the time delay relay 74 is energized, resulting in the closure of consure of the contractor '7 5 completesa circuit from theleit-hand main '38 through the op-' erating coil 76 of contactor 40, the normallyciosed contactor 65 and the normally closed limit switch 37, to the right-hand main 38. Ener 'ization of operating coil 76 results in the closure of the normally open contactor 40 as well as the auxiliary cont'actor 7 7 connected to move in unison with said contactor 40. Closure of auxiliary contactor '77 bridgesthe 'contactor 75 ofthe time delay relay 74, maintaining circuit through the operating coil 76 after the nut 32 hasmov-ed toward the right as the parts are viewed in described is substantially as follows: In describing the at this time.

Figure 7. Inasmuch as the 'auxil-iar'yfcen i tactor 64 moves in unison with contacjtor 40, the closure of said contactor 40 is accom panied by the closure of contactor 64,00111- pleting a circuit from the lett hand main 38 through the operating coil 63 ofcontactor 54, contractor 64, normally'closed contactor' and normally closed limit switch 37 to the right-hand main 38. Energization of main 38 through contactor 40, armature 41,.

series field winding 42, operating coil 43 of the brake mechanism 27, resistances 47 and 48 and contactor 46 to the right-hand main 38. Due to the energization of the operating coil 43, the brake mechanism 27 will be released, and due to the energization of the armature 41- and the series field winding 42, the motor 14 will be set'in operation. As saidmotor, including the armature 41 and field winding 42, "starts up, resistances 47 and 48 will be automatically cut out of circuit, through automatic switching means, which need not be'described herein, such means being well known to those skilled in the art. movement of the nut 32 toward the right from its left-hand limit of travel as the parts are viewed in Figure 7, allowing nor-' mally closed limit switch 34 to close and normally Open limit switch to open; Opening of limit switch 35 has no effect upon the energization of the operating coil 76 of cont-actor 40, inasmuch as the contacto'r of the time delay relay 74 is bridged by the contactor 77, which is closed when con-- tactor 40 is closed. It will be noted that contactor 65 and limit switch '37 are closed The motor '14, comprising the armature 41 and series field winding 42, continues to raise the bell; At the time or shortly be fore the bell is seated, the nut 32 causes the opening of the normally closed limit switch 3-6; The opening of the limit switch 36 results in the deenergization oi' the operating coils 69 and 70, resulting in the opening of contactors 45 and 44, respectively, reinsert+ ing resistances 47 and 48 in circuit with the armature 41 and series: field winding'42, resulting in the slowing down of the motor 14 (which includes the armature 41 and seriesii-eld-winding 42). The slowing down of the motor 14 prevents the violent closure of the 7 bell Band produces the result that the tailpiece 6 will be raised slowly. As mentioned above in the description of the cycle of operation of the mechanical instrumentalities,

the motor 14 will continue to operate after Operation of the motor will cause iao *the bell B i's closed; "suehiicontinued operav tion'resultin in the raising 'of the tailpiece 6, insuring ,t e sealing'of the bell B toits seat. Whenthe tailpiece 6 has been raised 3 a predetermined amount, the nut 32w1ll be at the right hand'limit of itstravel, result- ''ing' in the opening-of the norm-ally closed limit switch 37. 'Qpening of the limit switch 37 results in the d'eenergization' of operating coil'76, allowingi'contactors 40 and 46 to "open, thereby deenergizing the operating @011 43 of the 'brake'mechanism 27 and setting,

' the brake, wherebygthe-bell B is held closed and' the tailpiece 6 is-held'in elevated posi- 1 The" material now be deposited upon the bell B for the next succeeding dumping tion.

" operation. *When the-bell B hasbeen loaded, the start button 56; may be closed,- either 3 manuallyflor'automatically, inresponse to any predetermined 1 function. Closure of start button 56 results in the energization of j operating coils 57j'and 60," which coils j cause the closure of normally open contactor 49-and normally open contactor 55. Closure o f co'ntactor'49Iresu1ts in the closure of the auxiliary contactor 62, whereby operating coil 61 of contactor 46 is energized. Energiz'ation of coil 61 results in the closure of contactor 46. Inasmuch as operating coil -63 of normally closed-contactor 54 is in par "allel with coil 61,- theclosure of start button 56- Iwill cause 'the" opening of said 'norfinally closed-contactor 54. Closure of start button 56 will also result in'theenergization of operating 'coil's" 6 6, 69 and 70, which coils are in parallel circuits. It will be noted that contactor 67' is closed by reasonof the factthat contactor 49 is closed; also that con- '=tactor,68 is closed by reason of the" fact that contactjor'55 has been closedQLimit switch 1 33 is closedat this'time. Inasmuch as opcrating coil 69 of contactor gis bridged jacross the "operating coil 66'f'and' the con- .tactor 67,-"saidoperating coil-69 will be energized at this time, resulting in the closure bf normally open contactor 45. 'Inasmuch as: normallyopen contactor 71-closes with contactor 45, operating-coil 7 0 willibe energized at this time,-resulting in the closureof the normally open contactor 44. v Acircuit is now complete from the left-- hand main 38throughcontactor 49, resistance 50, contactor 52, series field winding 42,

. I brake operating coil 43 andconta'cto'rs 44, 45 land 46,;to the right-hand main 38. A; 'dynamic braking circuit isalso completed from the left-hand brush of thearmature 41 through'the resistance-53, contactor-s 55,45;

0 and 44,:brake operating coil 43, series field.

winding. 42,-to'the right-hand brush ofarvmature41. Inasmuch asthe brake operating coil 43 is deenergized, the brake mechanism i a 27 islreleased at this time, allowing the tailpiece fi toidescend." Excessive speedof descent ofth'e-tailpiece 6*is .prevent'edby reason of the dynamic braking effect of the current set up in the brakingcircuit immediately above referred to. After the tailpiece 6 has descended to its foundations, the. weight of the bell B together with its burden will cause the drum 1 to revolve, communicating further rotation to therotor of the motor 14. Inasmuch as the weight of.

the tailpiece 6 is no longer effective at this time to'cause rotation of the rotor of the motor 14, it is desirable to decrease the dy namic braking effect of themotor 14. According to the illustrated embodiment of the present invention, this decrease in the dynamic braking effect" of the motor l4'is accomplished by the limit switch 33. Rotation of the rotor of the motor 14 will cause the nut 32 to travel tothe left as the parts are closed limit-switch 33, int errup ting the circuit of the operatingcoils 66, 69 and 70, re-

viewed in Figure 7, opening the normally,

sulting in the openingof contactors 52, 45 V and 44, respectively, inserting resistances 51,

48 and 47. Inasmuch as the dynamic bliLk-r ing effect of the motor 14 is decreased by the insertion of said resistances 51, 48 and H 47, the hell with itsburden will be allowed to descend at a practicable speed, until the nut-32 has'reached the'left-hand limit of,

its travelas the parts are viewed in Figure 7, resulting in the opening'of 'thenormally jclosed limitswitch '34 and tlie'closure of the normally open limit switch 35. Opening of of operating coils 5.7-, 60, 61 and 63, resulting opened the brake operating coil 43*is deenergized and the brake mechanism 27 is set. This completes the cycle referred to.

The present invention, it will be noted, utilizes only relatively simple instrumentalities, most of which are readily purchasable in the'open market. Space and material are minimized inasumch as the motor acts as part of the counterweight for holding the bell in closed position, which motor and aslimit switch 34 results in the deenergizationiin theopening of con'ta'ct ors 49,55and .46

sociated parts operate with a leverage action, 7

whereby the sealing effect is decidedly efficient. Though the disclosure includes a counterweight, said counterweight need be only relatively small compared to those used in, other systems withp whi ch applicant is familiar. i

- 1 AS indicated above, each ,ofthe bells of av blast furnace may be provided with a hoisting and control system such as has been described above.

Though a preferred embodiment of the present invention has been described in detail, many modifications will occur to those skilledin the art. It is intended to cover all such modifications that fall within the scope of'the appended claims.

What is claimed is- 1. .In combination, a weighted movable member, stop means for limiting upward movement; of said member, an operating cable for lifting said member, a winding drum for said cable, and motive means connected to said drum, said motive means being tiltably mounted for movement about the axis of said drum, whereby after vsaid motive means has raised said weighted Vmember up against said stop. means continued operation of said motive means Wlll cause the tilting of said motive means.

2. In combination, a weighted movable member, a drum connected to said weighted member, a dynamo-electric machine spaced from but connected in driving relationship to said drum, said dynamo-electric machine being tiltably mounted about the axis of rotation of said drum, and stop means for limiting the travelof said weighted mern her at the upper limit of its range of movement, whereby continued operation of saiddynamo-electric machine with IIlOtOI'lIlg functions after said weighted member has reached said limit willresult in the elevation of said dynamo-electric machine.

3. In abell hoist, in combination, a charging bell, a seat for said bell limiting the up ward movement of said bell, cable means for said bell, a winding drum for said-cable means, an electric motor operatively connected to said winding drum, and means tiltable about the axis of said drum, said motor beingcarried by said tiltable means 'at a region spaced from the axis of rotation of said drum.

4. In; combination, a weighted movable member, a drum operatively connected to said weighted member for lifting said weighted member under certain predetermined conditions and for operation by said weighted member under certain other predetermined conditions, a tiltable member ber when said weighted member has been lifted to the limit ofits upward travel, said dynamo-electric machine being provided with dynamic braking circuit means, and

7 limit switch means for selectably controllin said dynamic braking circuit means; at dji; ferent values during the descent of said, tiltable member fromtilted' position and'during the operation of said rotatable member under the influence of. said -weighted member. v

6. In combination, a weighter- 'movable member, a drum operatively connected to said weighted member for; lifting said weighted member under predetermined-sconditions and for'operation by said weighted member under other predetermined conditions, mounting means, a dynamo-electric machme secured to said mounting means, a 7 base for sald mountmg-uneans, seiddynamoelectric machine and said mounting" means .being capable of upward movement from said base when said weighted member is, held infixed position, saiddynamo-electric machine being cooperatively vto said drum whereby said dynamoelectniiomw chine is capable of lifting said mounting means when said weighted member has: been lifted to its limit of upward travel-,v-said dynamo-electric machine being provided with dynamic breaking circuit means; and

limit switch means for controlling the dynamic breaking efl'ect of said dynamo-electric machine during the descent "of said. mounting means from elevated position. a c

7., In combination, a weighted movable member, a rotatable -member operatively connected to said weightedmember for lifting said weighted member, 31 1 13173: predetermined conditions and for operationlby ,said weighted member under otherpredetermined conditions, mounting means, dynamo-electric machine ecur d t id mounting means, said dynamo-electric ma-r chine and said mount-ing means being capable of upward movement when said weighted member is held inufixed position, said dynamo-electric machine being cooperatively connected to said rotatable member whereby said dynamo-electric machine is capable of lifting said mounting means when said weighted member has been lifted to its limit of upward travel, said dynamo-electric machine being provided with' dynamic braking circuit means and limit switch means for selectably controlling said dynamic braking circuit means at difierent values during the descent of said mounting means from elevated position and during the operation of said rotatable member under the influence of said Weighted member.

Signed at Chicago, Illinois, this 23rd day of November, 1928. r

' GORDON FOX. 

